Cigarette-making machine.



110,853,650. PATBNTED MAY 14, 1907; E. SGHURMANN.

CIGARETTE MAKING MAGHINB. v

APPLIOATION FILED ran. a. 1906.

2- SHEETSSHEBT 1.

rm: ucnms Pnsws co., wAsl-lmcrnm b. c

PATENTED MAY 14, 1907.

B. SOHfiRMANN, CIGARETTE MAKING MACHINE.

APPLIGATION rum) EEB.8,1906. 2 Sumksnm UNTTED STATES PATENT FFIQE.

CIGARETTE-MAKING MACHINE.

Specification of Letters Patent.

Patented May 14, 1907.

Application filed February 8, 1906. Serial No. 300,031.

' ing is a specification.

My invention relates to a cutting mechanism for cigarette makingmachines.

In machines to which my invention relates and particularly in thecutting devices thereof, it is obviously necessary that the cutterbothwhen entering and when leaving the continuously progressingcigarette-strips,

should follow the longitudinal movement of the latter in order to obtaina straight and clean rectangular cut. Therefore it is important, evenwhen the speed of the machine is great, and great variations in theworking are required, that any tilting or inclination of thecutter-frame and the carriage should be prevented or reduced to aminimum.

Furthermore it is absolutely necessary in order to obtain an exact cut,that the movement of the cutter frame, attained by means of a camdevice, should correspond to the different lengths of cigarettes whichare to be cut from the continuously progressing strip, withoutnecessitating an exchange of operating cams. Finally, it is necessary inorder to obtain a clean cut that the swinging movement of the cuttershould take place at the right moment and in such a manner, that afterthe out has been made the progressing strip will in no way be injured.

- In thecutting devices of cigarette making machines in so far as I amaware, the carriage has heretofore been moved in a longitudinaldirection by means of a single cam device, a tilting or setting at aninclination of the cutter frame could only be prevented by having a verytight fit of all the parts, thereby increasing the friction andconsequently the wear and tear of the parts, and consuming more power todrive the machine than would otherwise be required.

Now according to my present invention, a tilting or inclination of acutter carriage or support whose parts are properly fitted together, isprevented by means of a face cam ring employed to effect thelongitudinal movement being provided with two or more a correspondingnumber of rollers or equivalent devices adapted to bear symmetricallyagainst the cam ring in such a manner that the ring will actsimultaneously against all of the rollers and thereby cause the travelof the cutter carriage to be uniform in all parts thereof. These rollersare preferably mounted in a closed dust proof casing or cylinder, whichis arranged slidably over the operating cam ring on suitable guidesprovided therefor. Further these rollers are so arranged that thefeeding movement of the cutter carriage can be increased or reduced byan adjustment of the rollers which are mounted eccentrically in suitablebearings, and the structure is such that this, if necessary, may beaccomplished while the machine is runnln Iiiorder to effect the swingingmovement of the cutters, I employ a tappet cam which receives its rotarymotion from the main driving shaft by means of gear wheels prefer ablyof equal diameter and which may be adjusted in relation to the cam ringfor eiiecting the displacing of the carriage in such a manner that thecutter will on each altered movement of the carriage enter the strip atthe right moment, and a coiled spring is employed to move the cutter outof the path of the progressing strip before the backward movement of thecarriage takes place.

In the drawings a constructional form of the cutting-device according tothe present invention is shown in which Figure 1 represents a frontelevation partly in section. Fig. 2 is a longitudinal section with thecutters and their supports omitted. Fig. 3 is an end elevation partly incross section, and Fig. 4 is a detailed view.-

a is the main driving shaft on which a face cam ring a is mounted. Thiscam ring is I projections, resulting in such movement, and 5 5 providedwith two or more similar projections and is surrounded by a casing orcarriage b, on which circular cutters together with guide tubes i forthe strip "L to be out, are arranged as shown. The casing b besidesbeing slidably mounted on the shaft a and the cam ring a, is alsosupported on rods 6 b and is longitudinally movable thereon and carriestwo or more rollers 0 corresponding in number with the number ofprojections on the cam ring a, the cam surface of which is kept incontact continuously with all the rollers by means of a spring orotherwise, for the purpose of effecting an absolutely uniformreciprocating movement of the carriage. The casing I) will be partlyfilled with oil, whereby a tight closure excluding any dust or dirt,and. providing for a permanent oiling of the parts is secured, thusreducing as much as possible the wear and tear of such parts.

The rollers c are mounted eccentrically on supports d rotatably arrangedwithin the casing?) and the rollers may be adjusted when the machine isworking, by turning their supports (Z, either toward. the cam ring a oraway from the same, for the purpose of obtaining a variation of thetravel of the carriage 1), corresponding at any time to the desiredlength of cigarette, without making an exchange of cam rings necessary.

The adjustment of any roller 0 may be effected by means of a block (1attached to the support (Z and sliding in a groove 7c in a mem berprovided for this purpose on the outside of the carriage. This groovedmember can, if desired, and as shown for instance .in Figs. 3 and 4, bebrought by means of a rack and pinion Z from its horizontal positioninto an inclined position, and when the grooves k are horizontal asshown in Fig. 4 in full lines, no alteration in the position of therollers will take place when the carriage is moved, but if the grooves76 are in an inclined position as shown in Fig. 4, in dotted lines, theblocks (1, on the movement of the carriage will move upward within thegrooves 7r, whereby a turning of the bearing or support (I will beeffected in such a manner that the rollers a will move toward the camring a, and the travel of the carriage will be increased. On the otherhand if the grooves 7c be inclined in the opposite direction, therollers a will on the moving of the carriage, be moved further from thedriving cam ring a, whereby the travel of the carriage will be reduced.It will be understood that means other than the spring j may be employedto maintain the rollers c in contact with the face cam ring a.

It is obvious that in turning the drive shaft together with the camring, the carriage will be moved to and fro as many times as there arecam faces on the ring.

I also employ an auxiliary shaft 0 and this shaft is preferablyconnected with the drive shaft a by means of gear wheels 0 a which aredesirably of the same diameter and on the auxiliary shaft 6 a tappet camc is fixed.

7L, h, are circular cutters, each of which is revolubly mounted insuitable bearings at one extremity of an arm g pivotally mounted at m inthe lug m integral with or secured to the carriage l), and these cutters7L may be revolved by any suitable means, which how ever, form no partof my present invention. m is an adjustable frame member also pivotallymounted at m in the lug m and at the free end of the frame at is a shaftm on which a rollerfis mounted, the rollerfbeing adapted to be engagedby the t appet cam 0 fixed on the auxiliary shaft 6 and the frame memberm is maintained in position with the. rollerf in contact with the saidtappetatm c by means of a helical spring or otherwise.

Each arm 9 is made adjustable in order to take up the wear on thecutters /1, by means of the end g thereof being provided with a, slot 9through which a clamp bolt g is passed to secure the said arm to theframe member m and in order to effect an adjustment between the movementof the cutters l1 and that of the reciprocating carriage, the gear wheela" may be fixed on. the drive shaft (1 and the gear wheel 6 secured tothe auxiliary shaft 0 by means of a set screw or otherwise .in orderthat the said gear wheel c may be easily removed and adjusted in itsrelation to said gear wheel c I claim as my invention:

1.. In a cutting mechanism for cigarette making machines, thecombination with a reciprocating slide and a cutter carried thereby, ofa plurality of rollers mounted on the said reciprocating slide, a shaftand a ring fixed on said shaft and provided with a plurality ofprojections on one face thereof corresponding in number with the saidrollers which are engaged simultaneriusly by the said projections,substantially as and for the purposes specified.

2-. In a cutting mechanism for cigarette making machines, thecombination with a drive shaft, of a slide thereon, means for impartinga reciprocating movement to said slide andv means for varying the travelof said slide while the machine is in operation, substantially as andfor the purposes speci tied.

3. In a cutting mechanism for cigarette making machines, the combinationwith a reciprocating slide and a cutter carried thereby, of a pluralityof rollers mounted on said reciprocating slide, a shaft, a ring fixed onsaid shaft and provided with a plurality of projections on one facecorresponding to the number of said rollers which are engagedsimultaneously by the said projections and means for adjusting thepositions of the said rollers to vary the travel of the saidreciproeating slide, substantially as and for the purposes specified.

4. In a cutting mechanism for cigarette making machines, the combinationwith a reciprocating slide and. a cutter carried thereby, of a driveshaft, a cam ring fixed on said drive shaft and placed within the saidreciprocating slide, rollers mounted interiorly of the saidreciprocating slide and adapted to be engaged by the said cam ring and m\ans operated exteriorly of the slide for adjusting the positions of thesaid rollers to determine the travel of the said reciprocating slide,substantially as and for the purposes speci lied.

Its

5. In a-cutting mechanism for cigarettemaking machines, the combinationWith a drive shaft, a reciprocating slide and a cutter carried thereby,of a cam ring fixed on the said drive shaft and Within the saidreciprocating slide, supports journaled in the said reciprocating slide,rollers mounted on the said supports and adapted to be engaged by saidcam ring and means for shifting the positions of the said supports toadjust the positions of the said rollers, in order to determine thetravel of the said reciprocating slide, substantially as and for thepurposes specified.

6. In a cutting mechanism for cigarette making machines, the combinationwith a drive shaft, a reciprocating slide and a cutter carried thereby,of a cam ring fixed on the said drive shaft and Within the saidreciprocating slide, supports j ournaled in the said reciprocatingslide, rollers eccentrically mounted on the said supports and adapted tobe engaged by said cam ring, means for shifting the positions of thesaid supports to adjust the positions of the said rollers, in order todetermine the travel of the said reciprocating slide, and means formaintaining the said cam ring in contact With the said rollers,substantially as and for the purposes specified.

7. In a cutting mechanism for cigarette making machines, the combinationWith a slide and oscillating cutter, of means for imparting 'areciprocating movement to said slide, means for varying the travel ofthe said slide While the machine is'in operation, means for oscillatingthe cutter and means for adjusting the normal position of the saidcutter to take up the Wear on the same, substantially as and for thepurposes specified.

8. In a cutting mechanism for cigarette making machines, the combinationWith a reciprocating slide and a cutter carried thereby, of a driveshaft, a cam ring fixed on said drive shaft and placed Within the saidreciprocating slide, rollers mounted interiorly of the saidreciprocating slide and adapted to be engaged by the said cam ring,means operated exteriorly of the slide for adjusting the positions ofthe said rollers to determine the travel of the said reciprocatingslide, an auxtions of the said iliary shaftand means operated by thesaid auxiliary shaft for oscillating the said cutter,

gulcolstantially as and for the purposes speci- 9. In a cuttingmechanism, for cigarette making machines, the combination with a driveshaft, a reciprocating slide and a cutter carried thereby, of a cam ringfixed on the said drive shaft and Within the said reciprocating slide,supports journaled in the said reciprocating slide, rollers mounted onthe said supports and adapted to be engaged by said'cam ring, means forshifting the positions of the said supports to adjust the positions ofthe said rollers in order to determine the travel of the saidreciprocating slide, an auxiliary shaft driven by said main shaft, a camthereon, means operated by the said cam for lowering the said cutter andmeans for returning the said cutter to its normal position,substantially as and for the purposes specified.

10. In a cutting mechanism for cigarette making machines, thecombination With a drive shaft, a reciprocating slide and a cuttercarried thereby, of a cam ring fixed on the said drive shaft and Withinthe reciprocating slide, supports j ournaled in the said reciprocatingslide, rollers eccentrically mounted on the said supportsand adapted tobe engaged by said cam ring, means for shifting the posisupports toadjust the positions of the said rollers in order to determine thetravel of the said reciprocating slide, means for maintaining the saidcam ring in contact with the said rollers, an auxiliary shaft driven bysaid main shaft, a cam thereon, means operated by the said cam for lowering the said cutter and means for returning the said cutter to itsnormal position, substantially as and for the purposes specified.

In testimony, that I claim the foregoing as my invention I have signedmy name in presence of tWo Witnesses, this 24th day of J anuary 1906.

EDUARD SCHURMANN. Witnesses:

PAUL E. SOHILLING, PAUL ARRAS.

